# -*- coding: utf-8 -*-
# ㊎ Author : XMZ
# ㊍ Time : 2021/10/14 11:02
# ㊌ File : formula -> demo.py
# ㊋ IDE :  PyCharm
# ㊏ 
import os
import sys

self_path = os.path.dirname(os.path.abspath(__file__))
father_path = os.path.dirname(self_path)
parent_path = os.path.dirname(father_path)
sys.path.append(self_path)
sys.path.append(father_path)
sys.path.append(parent_path)
